Calculated Mean Content Values
| Units |
Average |
Min |
Max |
Standard Deviation |
| mg/100 g FW |
11.27 |
1.50 |
51.80 |
18.56 |
| mol/100 g |
3.18e-05 |
4.23e-06 |
1.46e-04 |
5.24e-05 |
Values calculated by aggregating data from 7
different samples
from
3 unique
publications.
Aglycone Mean Content Values
| Aglycone |
Units |
Average |
Min |
Max |
Standard Deviation |
| Caffeic acid |
mg/100 g FW |
5.73 |
0.76 |
26.34 |
9.44 |
| mol/100 g |
1.62e-05 |
2.15e-06 |
7.43e-05 |
2.66e-05 |
Original Content Values Used to Produce Means
Schieber, A.;Keller, P.;Carle, R. (2001) Determination of phenolic acids and flavonoids of apple and pear by high-performance liquid chromatography. Journal of Chromatography A 910:265-73 PubMed (11999391)
| Original Content Value |
Original Food Description |
Commercial Origin |
# of Samples Analyzed |
|
1.50 mg/100 g FW
|
Pear fruit extract - Alexander Lucas |
no |
1 |
|
1.70 mg/100 g FW
|
Pear fruit extract - Anjou |
no |
1 |
|
2.10 mg/100 g FW
|
Pear fruit extract - Williams |
no |
1 |
Moeller B., Herrmann K. (1983) Quinic acid esters of hydroxycinnamic acids in stone and pome fruit. Phytochemistry 22:477-481
| Original Content Value |
Original Food Description |
Commercial Origin |
# of Samples Analyzed |
|
15.60 mg/100 g FW
|
Pear - Conference |
no |
1 |
|
51.80 mg/100 g FW
|
Pear - Gellerts Butterbirne |
no |
1 |
Ping L., Xu-Qing W., Huai-Zhou W., Yong-Ning W. (1993) High Performance Liquid Chromatographic Determination of Phenolic Acids in Fruits and Vegetables. Biomedical and Environmental Sciences 6:389-398 PubMed (20919719)
| Original Content Value |
Original Food Description |
Commercial Origin |
# of Samples Analyzed |
|
3.53 mg/100 g FW
|
Pear 1 |
no |
1 |
|
2.65 mg/100 g FW
|
Pear 2 |
no |
1 |